Package org.polkadot.types.codec

Class Compact

  • All Implemented Interfaces:
    Codec
    Direct Known Subclasses:
    NonceCompact
    public class Compact
extends Base<Compactable>
implements Codec
    Compact A compact length-encoding codec wrapper. It performs the same function as Length, however differs in that it uses a variable number of bytes to do the actual encoding. This is mostly used by other types to add length-prefixed encoding, or in the case of wrapped types, taking a number and making the compact representation thereof

    • Field Summary

      • Fields inherited from class org.polkadot.types.codec.Base

        raw

    • Method Summary

      Modifier and Type Method Description
      int bitLength()
      Returns the number of bits in the value
      boolean eq​(java.lang.Object other)
      Compares the value of the input to see if there is a match
      int getEncodedLength()
      The length of the value when encoded as a Uint8Array
      boolean isEmpty()
      Checks if the value is an empty value
      java.math.BigInteger toBn()
      Returns the BN representation of the number
      java.lang.String toHex()
      Returns a hex string representation of the value
      java.lang.Object toJson()
      Converts the Object to JSON, typically used for RPC transfers
      long toNumber()
      Returns the number representation for the value
      java.lang.String toString()
      Returns the string representation of the value
      byte[] toU8a​(boolean isBare)
      Encodes the value as a Uint8Array as per the parity-codec specifications
      static Types.ConstructorCodec<Compact> with​(Types.ConstructorCodec<? extends Compactable> type)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface org.polkadot.types.Codec

        toU8a

    • Method Detail

      • toBn

        public java.math.BigInteger toBn()
        Returns the BN representation of the number

      • getEncodedLength

        public int getEncodedLength()
        The length of the value when encoded as a Uint8Array
        Specified by:
        getEncodedLength in interface Codec

      • isEmpty

        public boolean isEmpty()
        Checks if the value is an empty value
        Specified by:
        isEmpty in interface Codec

      • bitLength

        public int bitLength()
        Returns the number of bits in the value

      • eq

        public boolean eq​(java.lang.Object other)
        Compares the value of the input to see if there is a match
        Specified by:
        eq in interface Codec

      • toHex

        public java.lang.String toHex()
        Returns a hex string representation of the value
        Specified by:
        toHex in interface Codec

      • toJson

        public java.lang.Object toJson()
        Converts the Object to JSON, typically used for RPC transfers
        Specified by:
        toJson in interface Codec

      • toNumber

        public long toNumber()
        Returns the number representation for the value

      • toString

        public java.lang.String toString()
        Returns the string representation of the value
        Overrides:
        toString in class java.lang.Object

      • toU8a

        public byte[] toU8a​(boolean isBare)
        Encodes the value as a Uint8Array as per the parity-codec specifications
        Specified by:
        toU8a in interface Codec
        Parameters:
        isBare - true when the value has none of the type-specific prefixes (internal)